Pfizer #1 (3 weeks ago): Appt first thing in the morning, no noticeable effects that day. Next day developed a pretty bad headache, back ache, brain fog, and general fatigue. By the following day, I was back to normal.
Pfizer #2 (yesterday morning): Felt completely normal all day besides soreness at injection site. Chills/fever/headache started around 10pm leading to a very bad night of sleep. Today the headache is pretty much gone but I have lower back pain and fatigue. The headache was definitely milder this time around, but I also did a much better job of hydrating the last couple days.
Pfizer #2 (yesterday morning): Felt completely normal all day besides soreness at injection site. Chills/fever/headache started around 10pm leading to a very bad night of sleep. Today the headache is pretty much gone but I have lower back pain and fatigue. The headache was definitely milder this time around, but I also did a much better job of hydrating the last couple days.